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Share-based Compensation Exepnse (Details) (USD $)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Employee Service Share-based compensation, Nonvested Awards, Compensation Costs Not yet Recognized, Year One $ 85,000  
Employee Service Share-based Compensation, Nonvested awards, Compensation Costs Not yet Recognized, Year Two 28,000  
Share-based Compensation 202,000 345,000
Allocated Share-based Compensation Expense 202,000 345,000
Adjustments to Additional Paid in Capital, Share-based Compensation of Discontinued Operations, Requisite Service Period Recognition, Total. (7,000) 24,000
Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount 0 0
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized 113,000  
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition 1 year 3 months 8 days  
Cost of Contract Reserach and Services [Member]
   
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Allocated Share-based Compensation Expense 20,000 19,000
Cost of Sales [Member]
   
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Allocated Share-based Compensation Expense 32,000 74,000
Selling, General and Administrative Expenses [Member]
   
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]    
Allocated Share-based Compensation Expense $ 150,000 $ 252,000